CẢM BIẾN NHIỆT ĐỘ APLISENS MODEL LI-24ALW

Application and function

The temperature transmitter LI-24ALW is applicable to converting resistance of temperature or voltage of thermocouple sensor to standard current signal 4-20mA. The transmitter has two separate channels enabling measurement of temperature difference, averange, averange with redundancy, max. or min. temperature. Transmitter has compensation of ambient temparature influence and compensation of thermocouple cold junction using internal/external (Pt100) sensor or constant temperature. Most of parameters such as: sensor type, measuring range, current alarm signal when electric circuit is broken, output characteristic correction, user characteristic (60 points) are programmed using PC with HART/USB converter and Aplisens RAPORT 2 configuration software. For request Aplisens can set temperature transmitter parameters like measuring range, type of sensor. Their values are printed on label. Transmitter LI-24/ALWis designed for field use. LI-24ALWcan be used with temprature sensors mounted directly in transmitter’s casing or with external sensors connected with cable.

Technical data

Input signal

Resistance: Pt100,Ni100

Voltage: K, J,S,B,N,T, R, E

Limit process

-10mV< E<100mV or -100mV< E<1000mV

0W

Min. measuring range 10mV or 10W or 10K

Output signal 4 - 20 mA + Hart

Power supply

13,5*…55 VDC

Exia: 13,5*…30 VDC

Exd: 13,5*…45 VDC

Safety, Safety Exd: 12,5…36 VDC

Safety Exia: 12,5…30 VDC

Ambient temperature:

-40…+80°C

Exia: -40…+80°C

Exd: -40…+75°C

Safety: -40…+85°C

Safety Exia, Safety Exd: -40…+75°C